Factors of 340
The factors of 340 are 1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340. It has 12 factors.
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 340 is a whole number that divides it with nothing left over. You only need to test the numbers up to √340 ≈ 18.44; every one that divides gives a pair.
- 2
The factor pairs are listed in the table below. Together they give 12 factors.
- 3
Prime factorisation: keep dividing by the smallest prime that fits.
- 4
Add all the factors: 1 + 2 + 4 + 5 + 10 + 17 + 20 + 34 + 68 + 85 + 170 + 340 = 756. Without 340 itself that is 416, so 340 is an abundant number.
LaTeX source of the formulas on this page
\[ 340 = 2^{2} \times 5 \times 17 \]Factor pairs of 340
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 340 | 1 × 340 = 340 |
| 2 | 170 | 2 × 170 = 340 |
| 4 | 85 | 4 × 85 = 340 |
| 5 | 68 | 5 × 68 = 340 |
| 10 | 34 | 10 × 34 = 340 |
| 17 | 20 | 17 × 20 = 340 |
Questions
What are the factors of 340?
The factors of 340 are 1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340. It has 12 factors.
What are the prime factors of 340?
2, 5, 17. As a product: × 5 × 17.
How many factors does 340 have?
340 has 12 factors (6 factor pairs).
What is the sum of the factors of 340?
756.
Is 340 a prime number?
No. It is divisible by 2, so 340 = 2 × 170.